How to Choose Aluminium Ceramic Filter Plates?

The ceramic foam filter can improve the cleanliness of the melton aluminum. AdTech alumina ceramic foam filter can effectively eliminate large inclusions in the molten aluminum, as well as small inclusions of a few microns. The choice of the filter plate is a technical task. And how to choose the ceramic foam filters? You can consider the following factors.

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How to Choose Ceramic Foam Filters

Firstly, the final quality requirements of the casting determines the choice of foam ceramic filter.

• There are many impurities, and the quality of the cast products is average. Select a foam ceramic filter plate with a larger mesh opening, and add a glass fiber cloth coarse filter in front of the filter plate. The glass cloth can intercept the flow slag by the flow groove, so as to prevent the filter plate from being blocked.
• The quality requirements of the cast products are high, and it needs to choose the foam ceramic filters with small mesh openings.
• The selection of filter plate specifications is based on the flow rate of the melt and the total throughput. If the flow rate is large, the total throughput is large, the filter plate has small holes, it needs to choose the larger size.

Secondly, The ceramic filter plate should consider its color and features.

• The color is pure and free of impurities, which means that the material is uniform. If the hand is not sticky, it means that the surface is not sprayed with adhesive, which will not cause secondary pollution.
• Hold the filter plate with one hand and tap the filter plate with the other hand. The slag keeps dropping, indicating that the quality of the filter plate is poor.
• Burn the filter plate red, then immediately cool it at room temperature. There is no cracking and slag inclusion, indicating that the filter plate is good.

Thirdly, when purchasing alumina ceramic foam filter, carefully evaluate the effective specific surface area or porosity of the foam.

You can observe that the mesh on the surface layer of the filter plate is in a homogeneous state. Calculate the porosity by the drainage method. The three-dimensional mesh is homogeneous and the porosity is relatively large, which is an excellent foam ceramic filter plate.

Alumina foam ceramic is a kind of foam material made from high purity alumina. The foam ceramics have the characteristics of uniform porosity, high temperature resistance, heat shock resistance, wear resistance and chemical stability.

Widely used in casting processing, water treatment, chemical industry, environmental protection and other industries. Is the ideal liquid aluminum filter; Catalyst support, and good sound insulation, thermal insulation material. Product shapes, sizes, and voids PPI can be designed and manufactured on request.

Aluminium Ceramic Foam Filter Plate is suitable for the temperature of ℃, suitable for the filtration and purification of aluminum and alloy solutions.

It is very important to the quality of aluminum melt, which affects the subsequent processing performance and the quality of final products to a great extent. Therefore, all countries in the world attach great importance to the purification of aluminum melt.

How to choose the right alumina ceramic foam filter plate?

First of all, according to the impurity content of aluminum melt, melt transfer flow rate of the final casting product quality requirements.

● The plate with a large hole mesh can be chosed when a lot of impurities contained and normal quality of casting products required.

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● New type plate with small holes can be selected when the quality requirements of casting products are high.

HEBEI CANGCHEN Brand alumina ceramic foam filter plates adopt the organic bubble body with three-dimensional network structure and connected pores as the carrier, which is penetrated into the thixotropic alumina slurry, and adopts the automatic extrusion process with four square correction center distance, so that the slurry is evenly coated on the carrier bubble skeleton, and is roasted at ℃ after drying and curing. Installed in the filter box for aluminum alloy liquid impurities filtration, to meet the production of high value-added, high technical performance of aviation, transportation and other aluminum alloy precision casting. Such as: computer hard disk, printing with PS board base, can material, jet turbine engine fan blades and other products, to achieve the ideal cleanliness, to obtain good results.

● Depends on the flow rate and total amount of melt through.

Secondly, look at its color, shoot its body, burn its things during select the filter plate.

● The color is pure and no impurity that means the material is uniform; The hand is not sticky thatmeans the surface is not sprayed with binder, which will not cause secondary pollution.

● Holding the filter plate with one hand and clapping with the other hand, if the ceramic particles continuously drop when beating the filter plate, it means that a poor quality filter plate, which will cause secondary pollution of liquid aluminum.

● Use an open flame or electric heating to burn red and make it cooled at room temperature immediately without cracking slag, it is a good filter plate.

Thirdly, The effective specific surface area or porosity calculation of the foam should be carefully evaluated when selecting.

● The mesh homogeneity of the surface layer of the filter plate can be observed, and then the mesh homogeneity of the cross section can be observed.

● If possible, the porosity can be measured by drainage method.

● The three-dimensional mesh is homogeneous, the porosity is relatively large, means it is an excellent foam ceramic filter plate.